Lamp-burner.



No.- 693,006. Pate'nfed Feb. ll, I902;

J. GREGORY. LAMP BURNER.

(Application filed June 24, 1899.)

(No Model.)

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UNITED STATES PATENT OFFICE.

JOSEPH GREGORY, OF NEW YORK, N. Y.

LAM P-BURNER.

SPECIFICATION forming part of Letters Patent No. 693,006, dated February11, 1902.

Application filed June 24, 1899.

To all whom it may concern:

Be it known that I, JOSEPH GREGORY, a citizen of the UnitedStates,residin g at New York, in the county of New York and State of NewYork, have invented a new and useful Improvement in Lamp-Burners, ofwhich the following is a specfication.

This invention relates to oil-lamps embodying in their construction acircular wick-tube and a circular wick, the air being suppliedexteriorly and also centrally of the wick and the flame being spread bymeans of a spreader that moves vertically with the wick.

The principal object of this invention is the flame-spreader andwick-guard terminating entirely above the upper plane of the innerwick-tube to prevent both the flame and the heat of the spreader andguard from charring the upper inner edge of the wick, and an airtightguard around the spreader forcing the gas from the upper inner surfaceof the wick to pass into the central draft, where it mingles with asufficient quantity of air before passing out through the perforationsin the spreader to the flame. Practice demonstrates that a guardcovering the upper inside surface of the wick will prevent the flamefrom charring the wick, but it will allow the heat of the spreader andguard to char the wick. The form of spreader and guard disclosed in mydrawings overcome both of these objections at once, and by forcing thegas from the inside surface of the wick to pass into the spreader awhiter light is had and the wick is preserved, as these spreaders now ingeneral use will show.

The improvement is susceptible of various changes in the form,proportions, and the minor details of construction without departingfrom the principle or sacrificing any of the advantages thereof.

For a full knowledge of the invention reference is to be had to theaccompanying drawings and the following description.

Figure l is a central vertical section of a lampburner having theimprovements applied thereto. Fig. 2 is a side elevation of a portion ofthe chimney-holder and one of its supports, such holder beingrepresented in an elevated position. Fig. 3 is a section at the line w xof Fig. 2, and Fig. 4 is a section at the line y y of Fig.) with thelugs of the air- Serial No. 721,721. (No model.)

distributer in the vertical channels of the gallery-support.

The wick-tube is of cylindrical form and comprises the inner casing Aand an outer casing 0. Between the opposing walls is a space in whichthe wick B is received. The inner and outer casings have their upper endportions 2 and 3 flared away from the wick to prevent the overflow ofoil. The perforated cone or the spreader D carries a guard-ring 1,adapted to rest upon the top of the wick B, and there is an imperforatedeflector 6 a fixed distance above the gnard-ring 1, that rises andlowers with the wick B. The guard-ring 1 (shown in Fig. 1) can bemadeintegral with the perforated cone or spreader D by fiangingoutwardly the lower end of said spreader. The deflector 6 is preferablyintegral with the spreader for convenience in manufacturing; but a ringsecured to the cone or spreader at the same point would attain the sameresult, its office being to force the air passing out of the cone orspreader below the deflector into the flame.

In small lamps the guard-ring may be perforated; but in large lamps itis preferable not to. perforate it, as it serves the double purpose ofguard and extinguisher, as large lamps are hard to extinguish. If thebody of the perforated cone or spreader D is made small, it isadvantageous to perforate the guard-ring. The tube L centrally disposedwithin'the cone or spreader D and having its upper end securely fastenedto the cap 7 of the cone .or spreader, is adapted to fit the center rodL loose enough to allow the spreader to fall of its own weight when thewick B is lowered. It will be seen that this tube serves as a guide, inconnection with the center rod L, to keep the cone or spreader D in lineabove the wick and prevent the spreader from careening.

The center rod is fastened inside theairtube A by a bridge L, and therod passes up through the cone or spreader D far-enough to receive a nut8, which is threaded in the usual manner. When the nut 8 is set at anypoint on the upper end of the rod L, it will act as a stop to thespreader D and prevent it from being raised too high. The nut is verynecessary in lamp-stoves,where the wick B is hid from view, inasmuch asit indicates the safety-point, below which there is no danger ofsmoking.

In open-top lamps the nut 8 may be left off without interfering with theburning of the lamp, its function being to determine the height of theflame. The centrally-disposed rod L is the guide for the cone orspreader D, and it acts as a stop, in connection with the nut 8, and itkeeps the cone or spreader D in a true vertical line above the wick B.

Around the outer wick-casing C and se-. cured to the base-ring P of saidcasing in the usual manner, preferably by bayonet-locks 9, is aperforated air-distributor F and gallery-support, having a suitablespace between the air-distributer F and the outer wick-casing O for thefree passage of the air to the flame, and its upper edge is flangedoutwardly at 4 and provided with a series of lugs or projections on theouter edge of the flange, as at 10. Around the air-distributer F is atelescoping gallery II, adapted to be elevated for the purpose'oflighting the lamp without removing the chimney. The lower edge of thegallery is contracted, as at G, forming a band whichfits around theair-distributer F and acts as a guide for the lower edge of the gallery.

Extending upward from the band G are columns G, having grooves 5 orchannels on theirinner side corresponding with and adapt ed to slideoverthe projections 10. The lower ends of the channels 5 are L-shaped, sothat when the gallery is elevated and a slight rotary motion given to itthe projections 10 pass into the horizontal lower parts of the channels5 and hold the gallery in the elevated position until the lamp islighted, when a slight rotary motion passes the projections 10 back intothe vertical channels 5 and the gallery drops back into normal position.The space between the columns may be open ornamental work, having theopenings large enough to pass a burning match through for lighting thelamp; but it is preferable to cut shown. In lamps heretofore made havingtelescoping galleries the channels 5: are cut through the sheet metal,making a slot and reducing the strength of the metal. In thisconstruction the metal being forced outwardly, forming a riband channel5, the

- strength of the metal is reinforced.

It will be observed that there is a space at S between the columns andthe air-distributer, as in practice I find that anything touching ornear the air-distributor F obstructs the air, causing an uneven flameand necessitating another air-distributor between the outer one F andthe flame. By having the aforesaid space I find that one air-distributeris sufficient, thereby a saving is had and an even flame obtained.

It will be understood that the wick-guard is fastened to the cone orspreader and may be perforated. The conditions under which eeaooe it isused will determine this point. It will be understood that the centerrod is the guide for the cone or spreader and may be round,

flat, or square. 7

While the part D is herein referred to as a cone or spreader, it will beunderstood that the same is not necessarily of conical shape.

I claim as my invention- 1. In a central-draft lamp, the combinationwith an inner wicktube, of a perforated spreader having a wick-guardcoacting with said spreader, said guard preventing the flame fromreaching the upper inner surface of the wick, and forcing the gas fromthe upper inner surface of the wick to pass into the central draft andmingle with air before passing out through the perforations in thespreader to the flame, substantially as described, for the purpose setforth. v

2. In a central-draft lamp, the combination with an inner wick-tube, ofa vertically-movable perforated spreader having awick-guard coactingwith the spreader to prevent the flame from reaching the upper innersurface of the wick and forcethe gas from that portion of the wick topass into the central draft, and the spreader and guard terminatingabove the upper plane of the inner wick-tube to prevent the heat of thespreader and guard from chairing the upper inside surface'of the wick,substantially as described.

3. In a central-draft lamp, the combination with an inner wick-tube, ofa vertically-movable perforated spreader having a guard coacting withthe spreader to prevent the flame from reaching the upper inside surfaceof the wick and compel the gas from that portion of the wick to passinto the central draft, a centrally-disposed rod to limit the upwardmovement of the spreader and guard, said spreader and guard terminatingabove'the upper plane 1 of the inner wick-tube to prevent the heat ofthe spreader and guard from charring the upj per inside surface of thewick,.substantially as set forth. away the metal between the columns G,as l 4. In a central-draf t lamp, the combination with an innerwick-tube, of a spreader, a guard coacting with the spreader to preventthe flame from reaching the upper inside surface I of the wick, anopening below the guard l throughwhich the gas from the upper insidesurface of the wick is forced to pass into the central draft and minglewith air'before reaching the flame, substantially as described.

5. In a central-d raft lamp, the combination with an inner wick tube, ofa perforated spreader, a wick guard coacting with the spreader toprevent the flame from reaching the upper inside surface of the wick,and the gas from that portion of the wick from reaching the flame beforepassing through an opening below the guard into the central draft whereit mingles with air within the spreader and passes out through theperforations in the spreader to the flame, substantially as describedand for the purpose set forth.

'6. In a central-draft lamp, the combination with an inner wick-tube, ofa spreader coacting with a guard to prevent the flame from reaching theupper inner surface of the wick, and a means for the escape of gas fromthe inner portion of the wick, substantially as described.

7. In a central-draft lamp, the combination with an inner wick-tube, ofa flame-spreader and a wick-guard to prevent the flame from reaching theupper inside surface of the wick and a means for the escape of gas fromthat portion of the wick to the flame, substantially as described.

8. In a central-draft lamp, the combination with an inner wick-tube, ofa flame-spreader and guard, the upper inside surface of the wick unitingwith the guard to form the outer and upper walls of the gas-space whichcommunicates with the flame, substantially as de scribed.

9. In a central-draft lamp, the combination with an innerwick-tube, of aflame-spreader and guard forming a gas-space immediately below theguard, the upper inner surface of the wick being uncovered to saidgas-space, and a means for the escape of gas from said gas-space,substantially as described.

10. In a central-draft lamp, the combination of a wick, and a coactingflame-spreader and guard to inclose a gas-space which communicates withthe flame and prevents the flame from reaching the inner side of thewick, substantially as described.

11. In a central-draft lamp, a perforated flame-spreader having a guardto bear on the upper edge of the wick to prevent the flame from reachingthe inner side of the wick, the perforations in said spreader permittingthe passage of gas from the inner side of the wick to the flame,substantially as described.

12. In a lamp-burner, a vertically-movable flame-spreader having aguide-tube, in combination with a fixed guide-rod, engaged by said guide-tube, and means on said guide-rod above said flame-spreader, to limitthe vertical movement of said flame-spreader on said guide-rod,substantially as described.

13. In a lamp-burner, the combination of an inner wick-tube, a fixedvertical guide-rod connected thereto and supported thereby, avertically-movable flame-spreader having a guide-tube engaging saidguide-rod, and a stopnut screwed and adjustable on said guide-rod abovesaid flame-spreader, to limit the vertical movement of the latter,substan tially as described.

Signed by me this 21st day of June, 1899. JOSEPH GREGORY. -Witnesses:

GEo. T. PINc'kNEY, S. T. HAVILAND.

